Single trigger operating two loc



(No Model.)

P. D. GRANGER. SINGLE TRIGGER OPERATING TWO LOOKS ALTER'NATBLY. No.524,140.

Patented Aug. 7, 1894.

INVENTOR ATTORNEY 6;? BY f)? W1 TNESSES Nrr'no STATE ATENT GFFIQE.

FRANK D. GRANGER? OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO HALLAGKPENROSE, OF NEWLONDON, CONNECTICUT.

SINGLE. TRIGGER OPERATING Two LOCKSALTERNATEL'Y.

SPECIFICATION forming part of Letters Patent N o. 52fl,-140, datedAugust '7, 1 894.

Application filed March s, 1894.

T at whom it may concern: I

Be it known thatI, FRANK D. GRANGER, a citizen of the United States, anda resident of the city of New York, in the county of New York and Stateof New York, have invented certain new and useful. Improvements in Looksfor Firearms, of which the'followi mg is a specification.

This invention relates to single trigger mechanism for double-barreledguns, and the object of the invention is principally to atford a directcontact of the triggerwith either lock-searto avoid creep also toprovide a simple and efiective mechanism to reverse the selection ofthebarrel to be fired; and also to look not only'the trigger but'alsothe sears when the safety-catch is set.

To these ends the said invention consists I of novel mechanismhereinafter described and claimed. 7

Referring to the accompanyingdrawingS:

Figure 1 is a side elevation of the lock mechanism with the breech,partly in section; .Fig. 2a plan view partly in section of Fig. 1, taken.on the line m-w; Fig. 3, a partial plan view taken on the line yy, Fig.1; Fig. 4, a crosssection takenon the line 2-2, Figsl and 2; Fig. 5, across-section taken on the 1inew.0c, Figs. 1 and 2; and Fig. 6 aperspective detail view of the sear-shifting wheel.

' The invention is adapted for use in Icon- 'nection with two hammers A,within the breech B, of an automatically-cocked gun, which hammers arerestrained and released by respective lock-sears 0,1). The sears havejointed sections 0 D, pivoted at 10, 10, so as to swing sidew-ise, toengage alternately with the trigger E. 'As' a convenient means ofshifting the scars, a oam toothed wheel F, is

Serial No. 502,811. (No model) and in the ratchet series 3, there aretwice the number of teeth -rsay ten-that there are on either series 6 or7. Pins 8,8, slide in supports 2, 2, and abut at their outer ends on thejointed sections 0, D of the sears, and at their inner ends extend intothe paths of each se-' ries of cam-teeth 6, 7. The jointed sections 0',D, of the-sears are pressed inward by springs 9, 9. \Vhen the wheel F,is revolved by its ratchet teeth 3, one tooth at a time, eitherautomatically by the trigger pawl 4, or at will by the pawl 5,, as thecase may be, the pins 8, 8, are alternately pushed outward by thecam-teeth 6 and 7, shifting the sears accordingly; the tail of one searbeing moved 0E from the trigger by a pin 8, and the tail of the othersear being moved on to the trigger by its spring 9, simultaneously.

In Fig. 5 the sear-section D is shown in contact with the trigger readyto fire the right-hand barrel of the gun.

The position of the sears, "determining the f order of firing, isindicated byindicatin g pins 12, 13, carried on arms 14, 15, pivoted at16, having depending rods 17, 18, guided at 19, and terminatinginbeveled ends 20 engaging the extremities of the sears, in. the mannermore clearly shown in Fig. 5. sear is at the position occupied by Dready to fire, its respective indicator pin is raised at the exposedpart as at 13, by the depression of the respective rod, as 18.

' The safety-catch 25, is actuated by an external sliding piece 26, :orin any other. usual or suitable manner, being pivoted at 27. The arm 28of the trigger is bifurcated for convenience, and the catch 25 maybeinserted or withdrawn from the intermediate slot; and when at theposition shown, said catch locks not only the trigger E, but also thetail of the When either.

sear which happens to be on the 'trigger.'

The other sear is looked under its respective step 30; all possibilityof the-gun jarring off being thereby effectually prevented.

It is to be observed that the sears O, D, are

iressed upward at their front extremities rgainst the hammers A at 35,by sear-springs i6, determining thereby the limit of the downvardposition of the tails of the jointed secions G, D of the sears, and thatthe trigger E, is pressed upward with very moderate )r'essureagainst thetails of the sears by a mall spring 37, and moreoveran antifricionroller such as indicated at 38 may be rovided for the tails'of the scarsto ride on, illowing the shifting motion of the same to )e effected withas little resistance as posiible. -The pull of the trigger is limitedsoL8 to permit the pawl 4, to take one tooth 3, )f the ratchet at a time,by suitable means, LS-thB abutment of the rear portion of said triggerat the end of the slot inthe trigger- )late at 39.

The steps 30, are constructed in the form )f springs in order to yieldsufliciently to alow for the necessary upward motion of the ;ear whichis off the trigger in cocking.

The cars 40, on the sear-sections C, D, af- :'ord downward extensions ofthe vertical plane surfaces on the inside thereof for the )ins 8, toride on when a sear is lifted in, the act of firing.

I claim as my invention-and desireto secure )y Letters Patent 1. In alock for fire-arms, the combination )f twohammers, vertically andlaterally movable lock-sears respectively to the hammers, a trigger, andmeans for moving said sears alternately into or out of contact with the:rigger. 4

2. In a lock'for fire-arms, the combination )1 two hammers, verticallyand laterally movrespective sears to shift them laterallyinto and out ofcontact with the trigger, and a pawl connected with the trigger engagingwith teeth on said wheel 4. In a lock for fire-arms, the combination ofa. hammer, a trigger, and a jointed locksear laterally movable intoorout of contact with the trigger. f

5. In a lock for fire-arms, the combination laterally movable into orout of contact with the trigger, and'an indicating device actuated bythe lateral movement of the sear. v

6. In a lock for fire-arms the combination 'With two vertically andlaterally ovable lock-se'ars,-a.trigger, a safety-catch for coking thatsear which is in contact vwith the trigger,

and locking steps for the scars, adapted to prevent vertical movement ofthat sear which is out of contact with the trigger. I

Signed at New York, in the county of New York and State of New York,this 6th day of March, A. D.. 1894:.

FRANK, D. GRANGER.

WVitnesses:

' H. F..PARKER, K. M, TUCKER.

. 55- of a'hammer, a trigger, a jointed lock-sear

